App Review Zepto Ransomware

It is advised to take all reviews with a grain of salt. In extreme cases some reviews use dramatization for entertainment purposes.
I have been testing all those new *.js variants (special samples) in MalWareHub section in this forum with KTS2016MR1c which @Modal Soul has been uploading in previous weeks... and I have to say that some of those antivirus can't detect those variants on demand scanning, but They should block Them on execution... I have been even testing some of those variants *.js in KTS2016MR1c disabling File AV + HIPS (Application Control + FireWall, and in some cases without KSN/Cloud) and Kaspersky blocked all of Them...
 
The problem here is all about the AV analysis, obfuscation defeats the purpose which should improve more on those secondary components like HIPS, BB or even anti-Ransomware protection.

A product must work very well throughout the cycle plans.

Many AV implement BB, IDS and few others as passive and not proactive.